Revolution Gear and Axle Discovery Series D30 Front Axle Kit

Revolution Gear and Axle Discovery Series 4340 Chromoly Front Axle Kit, fits 2007-18 Jeep Wrangler JK Sport and Sahara Models with Dana 30 front axle and 27 Spline axles. This front axle kit utilizes larger Spicer 1350 Style U-Joints providing a substantial increase in strength over the smaller 5-760X U-Joint and allows extra clearance for tighter turning.

Specifications:

Note: Revolution Gear and Axle Discovery Series Axles are backed by a 10 Year Warranty covering manufacturing defects and axle breakage, bent axles and twisted splines. This warranty is non-transferable. U-Joints are only covered under warranty against manufacturing defects for 1 Year (Front Axle Kits with Revolution Gear HD Chromoly U-Joints carry a limited 10 Year Warranty). Parts subject to normal wear are not covered under warranty; this includes bearings and seals. Revolution Gear and Axle reserves the right to either axle replacement or credit after the first warranty claim.

A: Discovery Series axles are constructed from 4340 chromoly steel, offering significantly improved strength and durability over stock axles. They’re built to handle larger tires, more torque, and hard off-road use.

A: Absolutely. They’re engineered for serious trail use, rock crawling, and overlanding. The 4340 chromoly construction and full-circle snap rings make them ideal for demanding conditions.

A: Yes. This upgrade is recommended for JK owners running larger tires (35" or more), helping to reduce the risk of axle failure under load.